Length of a screw would appear to be less of an issue than the quality of the surface ice and angle placed. Author and climber Craig Luebben tested various screws to failure and found the strength was similar for all lengths but with poor surface ice, shorter screws would pull out whereas longer screws may bend first then break or pull out. Basically stubbies are less predictable so go for longer screws unless the ice is solid and non-aerated or thin ice.

BD spectres seem to be the stronger of hooks available but all hooks fail with strengths a lot lower than screws.

There are a lot of variables with ice pro so be careful and educate yourself.

NOTE: the original post has been deleted. As with the forum title it asked for a comparison with ice screw lengths. There were also some other comments which may be why the post was deleted.

What... is that some kind of joke? If you haven't fell, then you sure as heck are not on any climbing team. Teams are about pushing your limits... which means falling is unavoidable unless you are not at your limit.

There is a great story... too long for me to tale... it involves a climber on ice and the rock pulled out from the under ice... too much weight... SPLAT! Not a very fun story but this kind of thing happens.

Short screws suck. I had the unique opportunity to take an 80 foot ground fall (first lead fall on ice after 20 years playing the game) because of short screws and spectres. Luckily, I walked away. First rule in ice; don't fall. second rule: don't trust yer pro if you do. 3rd rule; this ain't no cute little rock gym, so pay attention.